Synthesis of Baconipyrone C

Significance

A new chiral Ru-based N-heterocyclic carbene complex F was deployed in the first asymmetric Ru-catalyzed asymmetric olefin meta­thesis reaction (E to G). New Ag- and Cu-based N-heterocyclic carbene complexes were used in catalytic asymmetric allylic alkylation reactions (e.g. A to C).